I'm not a fan of clash being rotated in and out. I'm sure there are a lot of people that would enjoy seeing it as a selectable mode every week. The matchmaking seems more balanced, most matches are actually close. While I know a lot of guardians don't like this idea there are probably a lot of people, like me, who only play PvP for power gear and leave the Crucible after they hit cap. Clash would keep me in the crucible more often and I'm guessing the same could be said for a lot of others.